[kaken2016_1d.eps]
y = 3 : B -> tau nu
y = 2 : K -> mu nu
y = 1 : combined

[kaken2016_all.eps]
blue : combined (B -> tau nu + K -> mu nu)
purple : B -> tau nu
black : K -> mu nu
green : B -> Xs gamma
red : all combined

NOTE :  current limit is M(H+) > 493 GeV (95% C.L.) @JHEPP05 (2016) 002